$ vagrant box remove hashicorp/precise32
Box 'hashicorp/precise32' (v1.0.0) with provider 'virtualbox' appears
to still be in use by at least one Vagrant environment. Removing
the box could corrupt the environment. We recommend destroying
these environments first:
default (ID: 5b58c53dbf674efb872117bb6047f3ce)
Are you sure you want to remove this box? [y/N] y
Removing box 'hashicorp/precise32' (v1.0.0) with provider 'virtualbox'...